EP0040037B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP0040037B1
EP0040037B1 EP81301975A EP81301975A EP0040037B1 EP 0040037 B1 EP0040037 B1 EP 0040037B1 EP 81301975 A EP81301975 A EP 81301975A EP 81301975 A EP81301975 A EP 81301975A EP 0040037 B1 EP0040037 B1 EP 0040037B1
Authority
EP
European Patent Office
Prior art keywords
boiler
air
heated
heat exchange
exchange unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81301975A
Other languages
German (de)
English (en)
Other versions
EP0040037A1 (fr
Inventor
Ronald James Brown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRANICEVIC, EDWARD JOHN
HARMON, RODNEY ALAN
Original Assignee
Franicevic Edward John
Harmon Rodney Alan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Franicevic Edward John, Harmon Rodney Alan filed Critical Franicevic Edward John
Priority to AT81301975T priority Critical patent/ATE9180T1/de
Publication of EP0040037A1 publication Critical patent/EP0040037A1/fr
Application granted granted Critical
Publication of EP0040037B1 publication Critical patent/EP0040037B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/081—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H6/00—Combined water and air heaters

Definitions

  • This invention relates to a heat exchange unit and more particularly relates to a heat exchange unit which can be used in both industrial and home situations to provide heated air and/or heated water.
  • a known heat exchange unit is that described in DE-A-2260862 which incorporates a boiler mounted within a housing, the boiler having a means for heating air and water and being described as a gas heater.
  • the steam outlet in the top of the boiler is connected to condenser tubes in which steam produced condenses before it flows back under the action of gravity to the boiler.
  • the latent heat of condensation given up by the condensing steam is collected by surrounding the condenser with air.
  • a disadvantage of this construction is the need to provide for the boiler additional equipment in the form of a flue as well as a gas supply with its attendent fire risk problems. This adds considerably to the overall costs and installation costs of the boiler.
  • Another known heat exchange unit is that described in CH-A-514818.
  • This specification relates to a combination air heating and hot water supply apparatus.
  • a heated vessel is sited within an insulated housing.
  • the vessel is spaced from the inner wall of the housing.
  • the housing has an inlet for supply air and an outlet for withdrawing heated air after it has passed over the outer wall of the vessel.
  • Above the vessel may be a tubular heat exchanger connected by tubes to the vessel.
  • This unit is a pressurised electrically heated unit and as such is not a true boiler in which steam, for heating, is produced.
  • the flow of water in the tubes between the vessel and heat exchanger therefore is stated to be controlled by a flow valve. Again no direct heat exchange occurs and the efficiency of the unit is reduced accordingly.
  • the unit is only a water heater and as such cannot be used to additionally heat a second air supply or water.
  • FIG. 2188805 Yet another known heat producing apparatus is that described in FR-A- 2188805.
  • This apparatus is designed for heating and the production of hot water.
  • the function of the apparatus is to provide either hot water, hot air or both:
  • the apparatus has a cylindrical furnace operated by a commercial burner the heat from the flame, via a baffle, of which contacts a lower face of a reservoir for water.
  • the exhaust gases pass above the reservoir through the tubes where they are collected in a fume box from which it is exhausted via a flue.
  • a fan drives air between the cylinder wall and the boiler and up past the reservoir to be heated after which it is ducted for use.
  • the water supply to the reservoir is from above.
  • By varying the operation of the fan hot water hot air or both are created.
  • An object of the present invention is to provide a heat exchange unit which may be used in a home or industrial situation, which heat exchange unit provides from a single source of heat a supply of heated air and/or a supply of heated water.
  • a further object of the present invention is to provide a heat exchange unit which offers to the public a useful alternative choice.
  • a heat exchange unit incorporating a boiler mounted within a housing, the boiler having means for heating air and water, and having a steam outlet in the top thereof through which steam can flow to a condenser in which the steam gives up its latent heat of condensation while the steam condenses and before it flows back under gravity to the boiler; characterised in that the boiler is electrically operated and has extending therethrough at least one air tube arranged so that air drawn or blown therethrough is heated by the boiler before it passes from the housing through an outlet; a supply tank is connected to the boiler to maintain a desired water level within the boiler; and means is provided to surround the condenser with air or water to be heated by collecting the latent heat of condensation of the condensing steam.
  • the housing within which the boiler is mounted can be provided with a series of baffles or scoops which direct the flow of drawn or blown air so that it passes through successive levels of air tubes through the boiler before being passed over the boiler and out the outlet in the housing.
  • the supply tank can be connected to the electrically heated boiler by a pipe through which water can pass to maintain the water level within the boiler and supply tank at a predetermined level.
  • the end of the pipe can be arranged to allow a back flow of heated water from the boiler to the supply tank to heat the water therein.
  • the steam outlet in the upper end of the boiler can be connected to a coil or to a series of tubes so that steam can flow therethrough to condense before being returned to the boiler.
  • the condenser coil or tubes can be fitted within a hot water storage reservoir which is heated by the latent heat or evaporation given up by the condensing steam.
  • the steam outlet to the coil or tubes can alternatively be mounted within a suitable casing provided with air inlets so that air can surround the coil or tubes to be heated, the heated air being allowed to flow via convection through outlets in the casing to heat the area in which the casing is situated.
  • the outlet from which heated air is blown or drawn can be connected to ducting to transfer the heated air to wherever it is required within a building.
  • the heat exchange unit according to the present invention can be used in a number of situations, for example, in the home or in an industrial situation.
  • the present invention can, for example, be used as a substitute for an open or closed type fire.
  • the example of heat exchange unit shown includes an electrically operated boiler generally indicated by arrow 1.
  • the boiler is mounted within a box shaped housing 2.
  • the boiler 1 and the outer housing 2 are preferably constructed from sheet metal materials.
  • the boiler 1 has at least one electrically operated heating element 3 therein and has on an end wall thereof a thermostat (not shown).
  • the housing 2 has in an end wall 4 thereof an inspection cover 5 which allows access to the heating elements 3 and thermostat for repair and/or maintenance purposes.
  • the end wall of the housing can also have mounted thereon an on/off switch and/or an appropriate fuse or fuses as required by the Electrical Wiring Regulations.
  • the floor, walls and top of the housing 2 can be formed as a cavity wall (not shown) within which is positioned insulation so as to reduce loss of heat therefrom.
  • the water level A within the boiler 1 is maintained by a flow of water from a supply tank 7.
  • the water level A within the boiler 1 and supply tank 7 are the same and are governed by a ball cock valve 8 ( Figure 3).
  • the flow of water between the supply tank 7 and the boiler 1 is by way of the connecting pipe 9.
  • the supply tank 7 can include an overflow pipe 10.
  • the boiler 1 has extending therethrough a number of air tubes 11 (shown dotted in Figure 1) through which air can pass to be heated by the hot water within the boiler 1.
  • air tubes 11 shown dotted in Figure 1
  • the boiler 1 can include a drain pipe 13.
  • the boiler 1 when operating is a main source of heat, and the flow of hot air can be controlled by a double bladed tangential fan 14 which draws or pushes air into inlet pipes 15.
  • the inlet pipes 15 direct air in the direction of the arrows ( Figure 1) through the first level of air tubes 11 against a baffle 17 at the other end of the housing 2 which baffle directs the flow to the middle level of air tubes back to the first end of the housing 2 above the inlet pipes 1 5 to a second baffle 17 which directs the flow to the upper level of air tubes 11 at the other end of which is a baffle 17 which directs the air over the top 18 of the boiler 1 to the outlet 16.
  • the outlet 16 from the housing 2 can be connected to ducting (not shown) to transfer the heated air to wherever it is required within a buiding.
  • the outlet 16 can be a series of apertures or louvres near to the upper edge of the housing 2 to allow air to be blown into the space or room in which the housing 2 is situated.
  • the flow of air around the boiler 1 can be in the direction of the arrows shown in Figure 1, that is, the cold air is initially blown through the inlet pipes 15 and through successive levels of the air tubes 11 before the air passes up and over the top 18 of the boiler and through the outlet 16.
  • the boiler 1 has in the top 18 thereof a steam outlet 19 through which steam flows to condenser tubes or coils 21 in which the steam may condense giving up its latent heat of evaporation to the material surrounding the condenser tubes or coils 21.
  • the condensed water returning to the boiler through the return pipe 20.
  • the return pipe 20 can have therein a pressure relief tube 22 draining back to the supply tank 7.
  • the condenser tubes or coils 21 can be surrounded for example as shown in Figure 1 by water in a hot water storage tank 23.
  • the tank 23 can be provided with additional heating elements (not shown) as required for use during the summer when the boiler 1 is not in use or when an extra supply of hot water is required
  • the storage tank 23 is provided with a supply outlet and inlet and insulation in known manner.
  • the steam outlet 19 from the boiler 1 can be connected to a radiator or to a series of coils (not shown) within a casing which acts as a radiator heater.
  • the casing has air flowing therethrough or therearound so that the area in which it is sited is heated by convection.
  • the boiler 1 according to the present invention can be fitted to supply at least heated air/and or hot water in the manner described.
  • a heat exchange unit for use in a home or industrial situation which provides from a single source a supply of heated air and/or a supply of heated water.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Air Humidification (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Air Supply (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Claims (10)

1. Ensemble d'échange de chaleur comportant un générateur (1) monté dans une carrosserie (2), le générateur présentant des moyens pour chauffer l'air et l'eau et présentant, en tête, une sortie de vapeur (19) par laquelle la vapeur peut passer dans un condenseur (21) dans lequel la vapeur abandonne sa chaleur latente de condensation en condensant et avant de retourner par gravité au générateur; caractérisé en ce que le générateur (1) est à commande électrique et qu'à travers lui s'étend au moins un tube à air (11) disposé de façon telle que l'air aspiré ou refoulé à travers lui soit chauffé par le générateur (1) avant de passer, depuis la carrosserie (2), par une sortie (16); en ce qu'un réservoir d'alimentation (7) est relié au générateur (1) pour maintenir dans le générateur (1) un niveau d'eau désiré; et en ce que des moyens (23) sont prévus pour entourer le condenseur (21) d'air ou d'eau à chauffer en recueillant la chaleur latente de condensation de la vapeur qui se condense.
2. Ensemble d'échange de chaleur selon la revendication 1, caractérisé en ce que la carrosserie (2) dans laquelle est monté le générateur (1) comporte une série de chicanes ou déflecteurs (17) qui dirigent le flux d'air aspiré ou refoulé de façon à le faire passer à travers des niveaux successifs de tubes à air (11) à travers le générateur (1) avant qu'il ne passe en tête du générateur et ne sorte par la sortie (16) prévue dans la carosserie (2).
3. Ensemble d'échange de chaleur selon la revendication 1 ou la revendication 2, caractérisé en ce que la liaison entre le réservoir d'alimentation (7) et le générateur électrique de chaleur (1) est une conduite (9) disposée pour permettre un retour de l'eau chauffée provenant du générateur (1) vers le réservoir d'alimentation (7) pour chauffer l'eau qui s'y trouve.
4. Ensemble d'échange de chaleur selon la revendication 3, caractérisé en ce que l'extrémité de la conduite (9) qui se trouve dans le réservoir d'alimentation (7) s'étend jusqu'à un point proche de la base du réservoir d'alimentation (7).
5. Ensemble d'échange de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que les tubes ou serpentins (21) du condenseur sont placés à l'intérieur d'un réservoir d'eau chaude (23) chauffé par la chaleur latente de condensation dégagée par la chaleur en se condensant.
6. Ensemble d'échange de chaleur selon la revendication 1, caractérisé en ce que le condenseur (21) est disposé dans un carter (23) à travers lequel l'air peut circuler de sorte que l'air peut entourer le condenseur et se réchauffer, l'air chauffé pouvant passer, par des sorties, des jalousies ou autres du carter (23) pour permettre à l'air chauffé de chauffer la zone dans laquelle est situé le carter (23).
7. Ensemble d'échange de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que la sortie (16) à partir de laquelle l'air chauffé est refoulé ou aspiré est reliée à des gaines pour transférer l'air chauffé là où il est nécessaire dans un bâtiment.
8. Ensemble d'échange de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que le générateur (1) est construit en matériau métallique de forte épaisseur et en ce que la carrosserie (2) dans laquelle il est monté est construite en un matériau métallique type tôle d'épaisseur plus faible.
9. Ensemble d'échange de chaleur selon la revendication 8, caractérisé en ce que la carrosserie (2) présente une de ses parois (4) sous forme de couvercle d'inspection (5) permettant d'accéder aux éléments chauffants (3), au ventilateur (14) et aux thermostats qui s'y trouvent.
10. Ensemble d'échange de chaleur selon l'une quelconque des revendications précédentes, caractérisé en ce que la carrosserie (2) est faite d'une paroi creuse dans laquelle est placée une couche de matériau isolant.
EP81301975A 1980-05-05 1981-05-05 Echangeur de chaleur Expired EP0040037B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81301975T ATE9180T1 (de) 1980-05-05 1981-05-05 Waermetauscher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ193612 1980-05-05
NZ193612A NZ193612A (en) 1980-05-05 1980-05-05 Heat exchange unit with electrically heated boiler

Publications (2)

Publication Number Publication Date
EP0040037A1 EP0040037A1 (fr) 1981-11-18
EP0040037B1 true EP0040037B1 (fr) 1984-08-29

Family

ID=19919159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81301975A Expired EP0040037B1 (fr) 1980-05-05 1981-05-05 Echangeur de chaleur

Country Status (7)

Country Link
EP (1) EP0040037B1 (fr)
JP (1) JPS5737695A (fr)
AT (1) ATE9180T1 (fr)
AU (1) AU546897B2 (fr)
DE (1) DE3165740D1 (fr)
NZ (1) NZ193612A (fr)
ZA (1) ZA812963B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101676226B1 (ko) * 2016-07-11 2016-11-15 주식회사 아이덱스 온풍기능을 구비한 온수매트 보일러 시스템

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122737A (en) * 1982-06-25 1984-01-18 British Gas Corp Space heating apparatus
US6066239A (en) * 1997-03-18 2000-05-23 The West Bend Company Water distiller with improved solids-removing baffle device
IT243276Y1 (it) * 1997-03-21 2002-03-04 Laminox Srl Radiatore ad olio, corredato di uno scambiatore di calore per laproduzione di acqua calda
CN110926251B (zh) * 2019-11-13 2020-09-01 东营市富宏光热石油工程有限公司 一种节能高效换热器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH514818A (de) * 1970-10-28 1971-10-31 Waltert Xaver Kombinierte Warmluftheiz- und Warmwasserversorgungseinrichtung
FR2188805A5 (fr) * 1972-06-08 1974-01-18 Lambla Gisele
DE2260862A1 (de) * 1972-12-13 1974-06-27 Junkers & Co Geraet zum erwaermen von brauchwasser und heizluft
GB1531991A (en) * 1975-10-31 1978-11-15 Chester T Convector space heaters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101676226B1 (ko) * 2016-07-11 2016-11-15 주식회사 아이덱스 온풍기능을 구비한 온수매트 보일러 시스템

Also Published As

Publication number Publication date
DE3165740D1 (en) 1984-10-04
AU7015981A (en) 1981-11-12
NZ193612A (en) 1982-03-16
AU546897B2 (en) 1985-09-26
ATE9180T1 (de) 1984-09-15
ZA812963B (en) 1982-04-28
EP0040037A1 (fr) 1981-11-18
JPS5737695A (en) 1982-03-02

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